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Specific requirements and characteristics of primary storage make designing desirable deduplication schemes a sophisticated task. In this paper, we propose DIODE, a Dynamic Inline-Offline DEduplication scheme that provides salient read/write performance and space-saving simultaneously for primary storage systems. DIODE orchestrates inline and offline processes in a dynamic manner. We propose two innovative...
Robustness and reliability in large-scale sensor networks present a triple challenge. First, the large scale (possibly compounded by the use of unreliable communication) makes failures -- transient and permanent -- unavoidable. Second, the difficulty of deploying such systems, especially in challenging environments, makes it next to impossible to replace failed nodes or rearrange surviving nodes after...
We propose a method to improve traditional character-based PPM text compression algorithm for natural languages. Consider a text file as a sequence of alternating words and non-words, the basic idea of our algorithm is to encode non words and prefixes of words using character-based context models and encode suffixes of words using dictionary models. By using dictionary models, the algorithm can encode...
In ubiquitous computing environments, the software component model with semantic information and adaptation to satisfy various resources constraints and component interdependence is needed. This paper mainly presents an adaptive and semantic component model for an adaptive middleware. The model consists of an adaptive component model and a semantic virtual agent model. The contribution of our work...
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